<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org"
>
<head>
    <meta charset="UTF-8">
    <title>王磊的博客</title>
</head>
<body>

<div th:fragment="webcome(about)">
    <span th:text="'欢迎：'+${about}"></span>
</div>

</body>
</html>